Which one of the following is NOT true of the corticospinal tracts? most of their neurons cross to the opposite side of the cord in the medulla.
they carry motor nerve impulses.
their neuron cell bodies lie in the precentral gyrus.
they travel the cord as lower motor neurons.

Consider the model of the oxygen cycle on earth. the majority of earth's oxygen reservoirs are found in the a) atmosphere. b) biosphere. c) hydrosphere. d) lithosphere.

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Environmental science are unconsidered with methods to preserve natural resourcesa.trueb.false